Hint Help in Primavera P6 provides onscreen help for various items. Click on any pre- defined column to view a definition of that field.
1. From the Layout Options bar, choose Hint Help.
2. Place the mouse over a column <Original Duration>.
3. Click the tack to keep the onscreen help in one location.
4. From the Layout Options bar, choose Hint Help to disable the onscreen help dialog box.